21412952

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3989}}^1$

素因数の和:4067

約数の個数: 32

約数和(自身を含む): 44528400

約数和(自身を除く): 23115448

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3989, 5368, 7978, 15956, 31912, 43879, 87758, 175516, 243329, 351032, 486658, 973316, 1946632, 2676619, 5353238, 10706476, 21412952]

約数ペア:

[(1, 21412952), (2, 10706476), (4, 5353238), (8, 2676619), (11, 1946632), (22, 973316), (44, 486658), (61, 351032), (88, 243329), (122, 175516), (244, 87758), (488, 43879), (671, 31912), (1342, 15956), (2684, 7978), (3989, 5368)]